A29j - 4…Bb4 5.Bg2 - Four Knights (1940)

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A29j — Four Knights (1940)
1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3 Bb4 5.Bg2
Les coups candidats
5…O-O — 88.5% (6093 parties)
Ambassadeurs : Zielinski, Sergej (91x), Belchev, Branimir Petrov (38x), Uhlmann, Wolfgang (36x), Portych, Václav (31x), Tsenkov, Ljubomir (24x), Beck, Georges (23x), Popov, Vladimir Valentinovich (20x), Kleinsorgen, Horst (18x)
5…Bxc3 — 6.6% (454 parties)
Ambassadeurs : Uhlmann, Wolfgang (6x), Hecht, Hans-Joachim (5x), Kholmov, Ratmir D (3x), Andriasian, Zaven (3x), Malich, Burkhard, Dr. (2x), Panno, Oscar (2x), Marcussi, Bartolome J (2x), Ludgate, Alan (2x)
5…d6 — 4.4% (300 parties)
Ambassadeurs : Henneberg, Olga (5x), Pettersson, Rolf (2x), Belenkaya, Dina (2x), Dziedzic, Andrzej (2x), Wójcik, Wieslaw (2x), Avner, Uri (1x), Adamski, Andrzej (1x), Yudovich, Mikhail M (1x)
5…d5 — 0.2% (13 parties)
Ambassadeurs : Legler, Derek (2x), Baluya, Brent Kristoffe (1x), GACHIRA LEONARD (1x), Horak, Miroslav (1x), Kostrhoun, Petr (1x), Moerschel, Natalie (1x), Amareesh Kochu Purakkal (1x), Morawietz Markus (1x)
Analyse statistique des coups candidats
Répartition par niveau Elo (% des parties)
Tranche Elo N parties 5…O-O 5…Bxc3 5…d6 5…d5
<1800 437 84% 8% 7% 0%
1800-2200 2450 88% 7% 5% 0%
2200-2600 2366 90% 7% 2% —
2600+ 216 91% 6% 3% —
Évolution par décennie (% des parties)
Décennie N parties 5…O-O 5…Bxc3 5…d6 5…d5
1950s 3 67% 33% — —
1960s 27 89% 4% 7% —
1970s 329 95% 5% 1% —
1980s 385 94% 3% 3% 0%
1990s 1134 89% 7% 4% 0%
2000s 1856 89% 6% 4% 0%
2010s 2575 87% 7% 5% 0%
2020s 577 87% 8% 4% 0%
Tendances récentes (2010s → 2020s)
Coup 2010s 2020s Δ
5…O-O 87% 87% -0.3%
5…Bxc3 7% 8% ▲ +1.2%
5…d6 5% 4% ▼ -1.4%
5…d5 0% 0% +0.1%
Joueurs célèbres
Champions du monde dans cette position
Kasparov, Garry — 10 parties
Karpov, Anatoly — 10 parties
Anand, Viswanathan — 10 parties
Smyslov, Vladimir — 3 parties
Kramnik, Vladimir — 3 parties
Ding, Liren — 3 parties
Carlsen, Magnus — 2 parties
Botvinnik, Mikhail — 1 partie
Tal, Mikhail — 1 partie
Ju, Wenjun — 1 partie
Parties historiques
5…O-O — 88.5% (6093 parties)
1955 — Filip, Miroslav vs Barta, Jan — 0-1 — Sliac
1959 — Petrosian, Tigran A. vs Keres, Paul Petrovich — 1/2-1/2 — Bled SLO
1961 — Uusi, Gunnar vs Kampenuss, Peteris — 0-1 — Riga LAT
1961 — Bielicki, Carlos vs Behrensen, Jorge — 1-0 — Balcarce
1962 — Eliskases, Erich vs Smyslov, Vasily — 1/2-1/2 — Mar del Plata ARG
5…Bxc3 — 6.6% (454 parties)
1952 — Panno, Oscar vs Huguet, Horacio E — 1/2-1/2 — Buenos Aires ARG
1967 — Langeweg, Kick vs Krabbe, Tim — 1-0 — Zierikzee ch-NED
1971 — Denman, Brian John vs Harman, Ronald F A — 1/2-1/2 — Blackpool ENG
1972 — Malich, Burkhard, Dr. vs Hecht, Hans-Joachim — 1/2-1/2 — Skopje ol final a
1972 — Malich, Burkhard, Dr. vs Hecht, Hans-Joachim — 1/2-1/2 — Skopje MKD
5…d6 — 4.4% (300 parties)
1964 — Avner, Uri vs Adamski, Andrzej — 1/2-1/2 — Krakow POL
1969 — Yudovich, Mikhail M vs Volovich, Anatoly — 0-1 — Moscow RUS
1978 — Fesche, Svein Tore vs Walisiak, Roman — 1-0 — Bruegge
1978 — Zahilas, Loukas N. vs Soilemezis, Anastasios — 1-0 — ?
1979 — Kileng, Benny vs Ardiansyah, Haji — 1-0 — Jakarta INA
5…d5 — 0.2% (13 parties)
1980 — Baluya, Brent Kristoffe vs GACHIRA LEONARD — 1-0 — cr.
1995 — Chandler, Tom vs Gordon, Sandra — 1-0 — ?
1997 — Horak, Miroslav vs Kostrhoun, Petr — 1-0 — Znojmo
1998 — Moerschel, Natalie vs Amareesh Kochu Purakkal — 1-0 — Hamburg GER
1999 — Morawietz Markus vs Berg, Juergen — 1-0 — ?